A kerogen preparation and performance test integrated system

Abstract

The present application relates to the technical field of kerogen preparation, and particularly relates to a kerogen preparation and performance test integrated system, which comprises a grinder, a reaction kettle and an adsorption chamber; the inner bottom of the reaction kettle and the adsorption chamber is provided with a glass rod, the outer bottom of the reaction kettle and the adsorption chamber is provided with an electromagnetic driver for driving the glass rod to rotate, the side of the reaction kettle and the adsorption chamber is provided with a temperature control device, the feed inlet at the top of the reaction kettle is connected with the discharge outlet of the grinder, one end of the reaction kettle close to the top is connected with a reaction reagent input device and a pressure increasing device, one end of the reaction kettle close to the bottom is connected with a waste liquid collecting device and the adsorption chamber, one end of the adsorption chamber close to the top is connected with an adsorbent input device, one end of the adsorption chamber close to the bottom is connected with an adsorbent collecting tank and an adsorbate collecting tank, and the bottom of the adsorbent collecting tank is provided with a weighing device. By using the integrated system, the preparation purity and efficiency of kerogen can be effectively improved, and the adsorption performance of the prepared kerogen can be integrally tested in practical application.

Description

Technical Field

[0001] This invention relates to the field of kerogen preparation technology, and more specifically to an integrated system for kerogen preparation and performance testing. Background Technology

[0002] Kerogen refers to dispersed organic matter in sedimentary rocks that is insoluble in alkalis, non-oxidizing acids, and organic solvents. It possesses a large specific surface area and adsorption capacity, and is widely used in catalysts, adsorbents, and separation materials. Currently, kerogen is typically prepared artificially using either the sol-gel method or the template method. Specifically, the sol-gel method involves adding a suitable precursor solution to a solvent to form a colloidal sol, followed by gelation to form kerogen. The template method involves depositing the precursor on a template surface, followed by heat or chemical treatment to remove the template and obtain kerogen. However, artificially preparing kerogen using either the sol-gel method or the template method is not only inefficient, but the purity also fluctuates depending on the experience of the technician. Furthermore, the lack of appropriate adsorption performance testing equipment for artificially prepared kerogen makes it impossible to quickly test its actual adsorption properties.

[0003] Therefore, there is an urgent need for an integrated system for kerogen preparation and performance testing to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the problems in the existing technology of lacking an integrated system for kerogen preparation and performance testing, resulting in low purity and low efficiency in kerogen preparation, and the inability to quickly test the actual adsorption performance of the prepared kerogen. This invention provides an integrated system for kerogen preparation and performance testing.

[0005] To achieve the above objectives, the present invention provides an integrated system for kerogen preparation and performance testing, which includes a grinder, a reaction vessel, and an adsorption chamber. Both the reactor and the adsorption chamber have glass rods installed at their inner bottoms and electromagnetic actuators installed at their outer bottoms to drive the glass rods to rotate. Temperature control devices are installed on the sides of both the reactor and the adsorption chamber. The feed inlet at the top of the reactor is connected to the discharge outlet of the grinder. A reagent input device and a pressurizing device are connected to the top end of the reactor, and a waste liquid collection device and the adsorption chamber are connected to the bottom end. An adsorbent input device is connected to the top end of the adsorption chamber, and an adsorbent collection box and an adsorbate collection box are connected to the bottom end. A weighing device is installed at the bottom of the adsorbent collection box.

[0006] Preferably, the temperature control device includes a heater and a temperature controller.

[0007] Preferably, the heater is an infrared heater.

[0008] Preferably, the reaction reagent input device includes a plurality of reaction reagent bottles, each of which is connected to the inner top of the reaction vessel via a reagent pipeline.

[0009] Preferably, the reagent pipeline is equipped with a peristaltic pump and a reagent valve.

[0010] Preferably, the pressurization device includes a pressure chamber, which is connected to the inner top of the reactor via a gas supply pipeline, and a pressure valve is provided on the gas supply pipeline.

[0011] Preferably, the pressure chamber stores high-pressure nitrogen.

[0012] Preferably, negative pressure dust extraction fans are installed on the connecting pipeline between the reaction vessel and the adsorption chamber, as well as on the connecting pipeline between the adsorption chamber and the adsorbate collection box.

[0013] Preferably, the glass rod is positioned at the middle of the bottom of the reaction vessel and the adsorption chamber.

[0014] Preferably, the electromagnetic actuator drives the glass rod to rotate via a magnetic rotor.

[0015] According to the above technical solution, based on this integrated system for kerogen preparation and performance testing, in practical applications, in accordance with the provisions of "Methods for Separation of Kerogen from Sedimentary Rocks (GB / T19144-2010)," the grinding mill, the reaction vessel, the temperature control device, the reaction reagent input device, and the pressurizing device can be used in combination to quickly prepare kerogen and effectively improve the purity of kerogen. Furthermore, according to the adsorption experiment standards, the adsorption chamber, the adsorbent input device, and the adsorbent collection box with a weighing device at the bottom can be used in combination to quickly test the adsorption performance of kerogen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the integrated system for kerogen preparation and performance testing.

[0017] Explanation of reference numerals in the attached figures 1. Grinder; 2. Reagent valve; 3. Peristaltic pump; 4. Reagent input device; 5. Pressure valve; 6. Pressure chamber; 7. Glass rod; 8. Heater; 9. Temperature controller; 10. Magnetic rotor; 11. Electromagnetic actuator; 12. Waste liquid valve; 13. Waste liquid collection device; 14. Discharge valve; 15. Negative pressure dust extraction fan; 16. Adsorbent input device; 17. Adsorbent discharge valve; 18. Adsorbent collection valve; 19. Adsorbent collection box; 20. Weighing device; 21. Adsorbate collection valve; 22. Adsorbate collection box. Detailed Implementation

[0018] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean a non-exclusive inclusion, the possibility of the presence or addition of one or more other features, units, components, and / or combinations thereof.

[0020] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] This invention provides an integrated system for kerogen preparation and performance testing, such as... Figure 1 As shown, the integrated system for kerogen preparation and performance testing includes a grinder 1, a reaction vessel 23, and an adsorption chamber 24; Both the inner bottom of the reaction vessel 23 and the adsorption chamber 24 are provided with glass rods 7, and both outer bottoms are provided with electromagnetic actuators 11 for driving the glass rods 7 to rotate. Both the reaction vessel 23 and the adsorption chamber 24 are provided with temperature control devices on their sides. The feed inlet at the top of the reaction vessel 23 is connected to the discharge outlet of the grinder 1. The reaction vessel 23 is connected to a reaction reagent input device 4 and a pressurizing device at one end near the top, and to a waste liquid collection device 13 and the adsorption chamber 24 at one end near the bottom. The adsorption chamber 24 is connected to an adsorbent input device 16 at one end near the top, and to an adsorbent collection box 19 and an adsorbate collection box 22 at one end near the bottom. The bottom of the adsorbent collection box 19 is provided with a weighing device 20.

[0022] In a preferred embodiment, the glass rod 7 is positioned at the middle of the bottom of the reaction vessel 23 and the adsorption chamber 24, thereby improving the stirring of the materials. Furthermore, the electromagnetic actuator 11 drives the glass rod 7 to rotate via the magnetic rotor 10, which can effectively enhance the stirring effect.

[0023] According to the above technical solution, based on this integrated system for kerogen preparation and performance testing, in practical applications, in accordance with the provisions of "Methods for Separation of Kerogen from Sedimentary Rocks (GB / T19144-2010)," the grinding mill, the reaction vessel, the temperature control device, the reaction reagent input device, and the pressurizing device can be used in combination to quickly prepare kerogen and effectively improve the purity of kerogen. Furthermore, according to the adsorption experiment standards, the adsorption chamber, the adsorbent input device, and the adsorbent collection box with a weighing device at the bottom can be used in combination to quickly test the adsorption performance of kerogen.

[0024] In the integrated system for kerogen preparation and performance testing described in this invention, in a preferred embodiment, the temperature control device includes a heater 8 and a temperature controller 9.

[0025] In a further preferred embodiment, the heater 8 is an infrared heater.

[0026] In this invention, by installing the temperature control device on the annular side of the reaction vessel 23 and the adsorption chamber 24, accurate temperature control can be achieved through the cooperation of the temperature controller 9 and the heater during the preparation and adsorption testing of kerogen. Furthermore, by using an infrared heater 8, that is, employing infrared heating with low thermal inertia, high thermal efficiency, and clean and environmentally friendly properties, not only can the airtightness of the preparation container be effectively guaranteed, but the highly toxic, corrosive, and volatile characteristics of the reaction reagents can also be avoided from affecting the preparation and / or testing process.

[0027] In the integrated system for kerogen preparation and performance testing described in this invention, in a preferred embodiment, the reaction reagent input device 4 includes a plurality of reaction reagent bottles, each of which is connected to the inner top of the reaction vessel 23 via a reagent pipeline.

[0028] In a further preferred embodiment, the reagent pipeline is equipped with a peristaltic pump 3 and a reagent valve 2.

[0029] In this invention, by including several reagent bottles in the reagent input device 4, the addition requirements of different reagents during kerogen preparation can be effectively met. Furthermore, by providing a peristaltic pump 3 and a reagent valve 2 on the reagent pipeline, not only can various reagents be accurately added to the reaction vessel 23, but the reagents also only contact the pump pipe during addition, preventing corrosion of the pump body. Moreover, the self-priming capability is strong, effectively preventing reagent backflow. Preferably, the adsorbent input device 16 can also be designed with reference to the reagent input device 4, depending on the actual application requirements. An adsorbent discharge valve 17 is provided on the adsorbent pipeline between the adsorbent input device 16 and the top of the adsorption chamber 24.

[0030] In the integrated system for kerogen preparation and performance testing described in this invention, in a preferred embodiment, the pressurization device includes a pressure chamber 6, which is connected to the inner top of the reactor 23 via a gas supply pipeline, and a pressure valve 5 is provided on the gas supply pipeline.

[0031] In a further preferred embodiment, the pressure chamber 6 stores high-pressure nitrogen.

[0032] In this invention, by setting up the pressurization device, when waste liquid and waste gas need to be discharged, the pressure valve 5 is opened to release the high-pressure nitrogen gas stored in the pressure chamber 6. Based on high-pressure displacement and the gravity of the reaction waste liquid, the waste gas and waste liquid are discharged into the waste liquid collection device 13. Preferably, the waste liquid collection device 13 may also include multiple waste liquid collection bottles, thereby effectively improving efficiency by using different waste liquid collection bottles to collect different types of reaction waste liquid. Nitrogen gas is chosen as the high-pressure gas to prevent impact on the kerogen preparation environment and the purity of the preparation. The bottom of the reaction vessel 23 is connected to the waste liquid collection device 13 via a waste liquid pipeline, and a waste liquid valve 12 is provided on the waste liquid pipeline.

[0033] In the integrated system for kerogen preparation and performance testing described in this invention, preferably, negative pressure suction fans 15 are installed on the connecting pipes between the bottom of the reactor 23 and the top of the adsorption chamber 24, and on the connecting pipes between the bottom of the adsorption chamber 24 and the top of the adsorbate collection box 22. The motor of the negative pressure suction fan 15 drives the fan blades to rotate at high speed, creating a negative pressure space. Under the action of the pressure difference between the upper and lower parts, the kerogen powder can be transported and sucked in. A discharge valve 14 is also installed on the connecting pipe between the reactor 23 and the adsorption chamber 24. An adsorbent collection valve 18 is installed on the pipe between the bottom of the adsorption chamber 24 and the top of the adsorbent collection box 19, and an adsorbate collection valve 21 is installed on the pipe between the bottom of the adsorption chamber 24 and the top of the adsorbate collection box 22.

[0034] The present invention will be described in detail below through embodiments, but the scope of protection of the present invention is not limited thereto.

[0035] Example 1 Adopting such Figure 1 The integrated system for kerogen preparation and performance testing shown is used for the preparation and adsorption performance testing of kerogen. Specifically, the integrated system for kerogen preparation and performance testing includes a grinder 1, a reaction vessel 23, and an adsorption chamber 24. Both the reactor 23 and the adsorption chamber 24 have glass rods 7 installed at their inner bottoms and electromagnetic actuators 11 installed at their outer bottoms to drive the glass rods 7 to rotate. Temperature control devices are installed on the sides of both the reactor 23 and the adsorption chamber 24. The feed inlet at the top of the reactor 23 is connected to the discharge outlet of the grinder 1. A reagent input device 4 and a pressurizing device are connected to the top end of the reactor 23, and a waste liquid collection device 13 and the adsorption chamber 24 are connected to the bottom end. An adsorbent input device 16 is connected to the top end of the adsorption chamber 24, and an adsorbent collection box 19 and an adsorbate collection box 22 are connected to the bottom end. A weighing device 20 is installed at the bottom of the adsorbent collection box 19. The glass rods 7 are positioned in the middle of the bottom of the reactor 23 and the adsorption chamber 24. The electromagnetic actuators 11 drive the glass rods 7 to rotate via a magnetic rotor 10. The temperature control device includes a heater 8 and a temperature controller 9, wherein the heater 8 is an infrared heater; the reaction reagent input device 4 includes several reaction reagent bottles, each of which is connected to the inner top of the reaction vessel 23 via a reagent pipeline; a peristaltic pump 3 and a reagent valve 2 are provided on the reagent pipeline; the pressurization device includes a pressure chamber 6, which is connected to the inner top of the reaction vessel 23 via a gas supply pipeline, and a pressure valve 5 is provided on the gas supply pipeline; high-pressure nitrogen is stored in the pressure chamber 6; negative pressure dust extraction fans 15 are provided on the connecting pipeline between the reaction vessel 23 and the adsorption chamber 24, and on the connecting pipeline between the adsorption chamber 24 and the adsorbate collection box 22.

[0036] In practical applications, mudstone and shale samples are weighed according to test requirements and standards, placed in a soil grinder 1, sealed, and ground. After grinding, the pulverized sample, under its own weight and the vibration of the grinder 1, passes through a filter sieve and a funnel into the reaction vessel 23. According to the "Method for Separation of Kerogen from Sedimentary Rocks (GB / T19144-2010)," a 6 mol / L hydrochloric acid solution is added to the reaction reagent bottle at a ratio of 6-8 mL hydrochloric acid per gram of sample. The controller controls the reagent valve 2 and peristaltic pump 3 to ensure the chemical reagents in the reaction reagent bottle are smoothly introduced into the reaction vessel 23. After the reagents are introduced into the reaction vessel 23, the heater 8 is activated using the temperature controller 9 to raise the temperature inside the reaction vessel 23 to 60-70℃, increasing the molecular potential and kinetic energy of the reactants and promoting the chemical reaction process. Simultaneously, the controller activates the electromagnetic driver 11, gradually increasing the speed of the magnetic rotor 10, which in turn drives the glass... The rod 7 rotates at high speed, stabilizing the rotation speed at 2000-3000 r / min, and is stirred for 4 hours while heating to fully decompose the carbonate rock. After this, the pressure valve 5 is opened to release the high-pressure nitrogen gas in the pressure chamber 6. At the same time, the waste liquid valve 12 is opened, and under the action of high pressure and gravity, the waste liquid is discharged into the waste liquid collection device 13. When a large amount of gas is detected in the waste liquid collection device 13 and there is no liquid gain, the reaction reagent bottle is replaced with a reagent bottle containing distilled water, and the reagent valve 2 and peristaltic pump 3 are opened. The electromagnetic actuator 11 is started, and the solution is washed with distilled water until it becomes weakly acidic. The distilled water input is then stopped, and the electromagnetic actuator 11 and waste liquid valve 12 are closed to complete the first hydrochloric acid treatment. Next, prepare a mixed solution of 2.4 mL of 6 mol / L hydrochloric acid and 3.6 mL of 40% hydrofluoric acid per gram of sample. Replace the reaction reagent bottle with the bottle containing the above solution. Repeat the hydrochloric acid treatment step three times. Then, prepare 6-8 mL of 6 mol / L hydrochloric acid solution per gram of sample, and replace the corresponding reaction reagent bottle. Repeat the hydrochloric acid treatment step three more times. After completing all the above acid treatments, repeat the operation 5 times to finally complete the acid treatment. Similarly, take 200 mL of 0.5 mol / L sodium hydroxide solution into the reaction reagent bottle, open reagent valve 2 and peristaltic pump 3, turn on electromagnetic drive 11 and stir continuously for 30 min. Then, open pressure valve 5 to release the high-pressure nitrogen gas in pressure chamber 6. At the same time, open waste liquid valve 12. Under the action of high pressure and gravity of reaction waste liquid, the waste liquid is discharged into waste liquid collection device 13 to remove the alkali solution. When waste liquid collection device 13 detects a large amount of gas and no liquid gain, one alkali treatment is completed. Repeat the above operation until the alkali solution is colorless. After the last removal of the alkali solution, replace the reaction reagent bottle with a reagent bottle containing distilled water, open reagent valve 2 and peristaltic pump 3, start electromagnetic actuator 11, wash with distilled water until neutral, stop the continued input of distilled water, close electromagnetic actuator 11 and waste liquid valve 12, and the alkali treatment is completed.In the pyrite processing, 6 mol / L hydrochloric acid and arsenic-free zinc granules are added to the reaction vessel through a reaction reagent bottle and a soil grinder 1. At the same time, the electromagnetic actuator 11 is turned on. After the reaction is complete, the pressure valve 5 is opened to release the high-pressure nitrogen gas in the pressure chamber 6. Simultaneously, the waste liquid valve 12 is opened. Under the action of high pressure displacement and gravity of the reaction waste liquid, the waste gas and waste liquid are discharged into the waste liquid collection device 13. When the gas produced by the reaction no longer has the odor of hydrogen sulfide, the reaction reagent bottle is replaced with a reagent bottle containing distilled water, and the reagent valve 2 and peristaltic pump 3 are opened. The electromagnetic actuator 11 is started, and the mixture is washed with distilled water until there are no halogen ions. The electromagnetic actuator 11 and the waste liquid valve 12 are then closed to complete the pyrite processing. Add a heavy liquid with a relative density of 2.0-2.1 g / ml to the reactor 23, turn on the electromagnetic actuator 11, and maintain a rotation speed of 2000-3000 r / min for about 20 minutes. Then turn off the electromagnetic actuator 11 and let it stand until it separates into layers. Open the pressure valve 5 to release the high-pressure nitrogen gas in the pressure chamber 6. At the same time, open the waste liquid valve 12. Under the action of high pressure and gravity, the waste liquid is discharged into the waste liquid collection device 13 to obtain the upper layer of kerogen. Repeat the above process according to standards and experimental requirements to prepare a large quantity of high-purity kerogen. In the kerogen adsorption experiment, turn on the discharge valve 14 and the negative pressure dust collector 15 in sequence. The rotation of the fan blades creates a negative pressure in the adsorption chamber 24 at the bottom of the reactor 23. The pressure difference draws the prepared dry high-purity kerogen powder into the adsorption chamber 24. Similar to the kerogen preparation process, a fixed amount and corresponding concentration of adsorbent solution are prepared according to standards and experimental requirements. The adsorbent discharge valve 17 is opened, allowing the adsorbent to flow from the adsorbent input device 16 into the adsorption chamber 24 under gravity. Depending on the requirements of different adsorption experiment types, the thermodynamic adsorption, kinetic adsorption, and other adsorption experiments are performed using a temperature controller 9, heater 8, electromagnetic actuator 11, magnetic rotor 10, and glass rod 7. After the adsorption experiment is completed, the adsorbate and adsorbent are separated. The adsorbent collection valve 18 is opened, allowing the adsorbate solution to flow into the adsorbent collection tank 19. The change in adsorbent mass is measured using a weighing device 20 (electronic precision balance), and the adsorption amount is calculated based on the gravimetric method. Finally, the adsorbate collection valve 21 and the corresponding negative pressure suction fan 15 are opened to draw the adsorbed kerogen into the adsorbate collection tank 22. Thus, based on the observation of the adsorbent mass and density changes, the adsorption amount is calculated, and the kerogen adsorption experiment is completed.

[0037] Testing has shown that the integrated system for kerogen preparation and performance testing described in this invention can effectively improve the preparation efficiency and purity of kerogen, and achieve integrated testing of kerogen adsorption performance. Based on the test results, the purity of kerogen preparation can be further improved.

[0038] The integrated system for kerogen preparation and performance testing provided by this invention, in practical applications, according to the provisions of "Methods for Separation of Kerogen from Sedimentary Rocks (GB / T19144-2010)," utilizes the grinder, the reaction vessel, the temperature control device, the reaction reagent input device, and the pressurization device to rapidly prepare kerogen and effectively improve its purity. Furthermore, according to adsorption experimental standards, by utilizing the adsorption chamber, the adsorbent input device, and the adsorbent collection box with a weighing device at the bottom, rapid testing of kerogen adsorption performance can also be achieved.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A system integrating kerogen preparation and performance testing, characterized in that, The integrated system for kerogen preparation and performance testing includes a grinder (1), a reaction vessel (23), and an adsorption chamber (24). The inner bottom of both the reactor (23) and the adsorption chamber (24) is provided with a glass rod (7), and the outer bottom of both is provided with an electromagnetic driver (11) for driving the glass rod (7) to rotate. The sides of both the reactor (23) and the adsorption chamber (24) are provided with temperature control devices. The feed inlet at the top of the reactor (23) is connected to the discharge outlet of the grinder (1). The reactor (23) is connected to a reaction reagent input device (4) and a pressurizing device at the top end and to a waste liquid collection device (13) and the adsorption chamber (24) at the bottom end. The adsorption chamber (24) is connected to an adsorbent input device (16) at the top end and to an adsorbent collection box (19) and an adsorbate collection box (22) at the bottom end. A weighing device (20) is provided at the bottom of the adsorbent collection box (19). The temperature control device includes a heater (8) and a temperature controller (9); The heater (8) is an infrared heater; The reaction reagent input device (4) includes several reaction reagent bottles, each of which is connected to the inner top of the reaction vessel (23) through a reagent pipeline; The reagent pipeline is equipped with a peristaltic pump (3) and a reagent valve (2).

2. The integrated system for kerogen preparation and performance testing according to claim 1, characterized in that, The pressurization device includes a pressure chamber (6), which is connected to the top of the reactor (23) via a gas supply pipeline, and a pressure valve (5) is provided on the gas supply pipeline.

3. The integrated system for kerogen preparation and performance testing according to claim 2, characterized in that, The pressure chamber (6) contains high-pressure nitrogen.

4. The integrated system for kerogen preparation and performance testing according to claim 1 or 2, characterized in that, Negative pressure dust collectors (15) are installed on the connecting pipes between the reactor (23) and the adsorption chamber (24) and the connecting pipes between the adsorption chamber (24) and the adsorbate collection box (22).

5. The integrated system for kerogen preparation and performance testing according to claim 1, characterized in that, The glass rod (7) is positioned at the middle of the bottom of the reactor (23) and the adsorption chamber (24).

6. The integrated system for kerogen preparation and performance testing according to claim 5, characterized in that, The electromagnetic actuator (11) drives the glass rod (7) to rotate via the magnetic rotor (10).

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